Home / 152,907.20-229,322.40-54,388.16

Finding the Fourth Proportional to 152,907.20, 229,322.40 and 54,388.16

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Solution

The fourth proportional to 152,907.20, 229,322.40 and 54,388.16 is: 81,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,907.20 : 229,322.40 = 54,388.16 : x
  2. Step 2: Convert to fraction form
    152,907.20/229,322.40 = 54,388.16/x
  3. Step 3: Cross multiply
    152,907.20x = 229,322.40 × 54,388.16
  4. Step 4: Simplify right side
    152,907.20x = 12,472,423,382.78
  5. Step 5: Solve for x
    x = 12,472,423,382.78/152,907.20
  6. Step 6: Final answer
    x = 81,568.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.